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Merge "Make Font class being able to create from native instance" into sc-dev

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This commit is contained in:
TreeHugger Robot
2021-02-09 01:14:05 +00:00
committed by Android (Google) Code Review
parent c534edd535 1dd39f3bde
commit 317c0ae14c
11 changed files with 290 additions and 571 deletions
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268
graphics/java/android/graphics/fonts/Font.java
View File

@@ -26,8 +26,7 @@ import android.graphics.Paint;
import android.graphics.RectF; import android.graphics.RectF;
import android.os.LocaleList; import android.os.LocaleList;
import android.os.ParcelFileDescriptor; import android.os.ParcelFileDescriptor;
import android.util.Log; import android.text.TextUtils;
import android.util.LongSparseArray;
import android.util.LongSparseLongArray; import android.util.LongSparseLongArray;
import android.util.TypedValue; import android.util.TypedValue;
@@ -44,7 +43,6 @@ import java.io.FileInputStream;
import java.io.FileNotFoundException; import java.io.FileNotFoundException;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
import java.nio.ByteOrder; import java.nio.ByteOrder;
import java.nio.channels.FileChannel; import java.nio.channels.FileChannel;
@@ -61,14 +59,9 @@ public final class Font {
private static final int STYLE_ITALIC = 1; private static final int STYLE_ITALIC = 1;
private static final int STYLE_NORMAL = 0; private static final int STYLE_NORMAL = 0;
private static final Object MAP_LOCK = new Object(); private static final NativeAllocationRegistry BUFFER_REGISTRY =
// We need to have mapping from native ptr to Font object for later accessing from TextShape NativeAllocationRegistry.createMalloced(
// result since Typeface doesn't have reference to Font object and it is not always created from ByteBuffer.class.getClassLoader(), nGetReleaseNativeFont());
// Font object. Sometimes Typeface is created in native layer only and there might not be Font
// object in Java layer. So, if not found in this cache, create new Font object for API user.
@GuardedBy("MAP_LOCK")
private static final LongSparseArray<WeakReference<Font>> FONT_PTR_MAP =
new LongSparseArray<>();
private static final Object SOURCE_ID_LOCK = new Object(); private static final Object SOURCE_ID_LOCK = new Object();
@GuardedBy("SOURCE_ID_LOCK") @GuardedBy("SOURCE_ID_LOCK")
@@ -79,9 +72,7 @@ public final class Font {
* A builder class for creating new Font. * A builder class for creating new Font.
*/ */
public static final class Builder { public static final class Builder {
private static final NativeAllocationRegistry sFontRegistry =
NativeAllocationRegistry.createMalloced(Font.class.getClassLoader(),
nGetReleaseNativeFont());
private @Nullable ByteBuffer mBuffer; private @Nullable ByteBuffer mBuffer;
private @Nullable File mFile; private @Nullable File mFile;
@@ -484,26 +475,15 @@ public final class Font {
final String filePath = mFile == null ? "" : mFile.getAbsolutePath(); final String filePath = mFile == null ? "" : mFile.getAbsolutePath();
long ptr; long ptr;
int fontIdentifier; final Font font;
if (mFont == null) { if (mFont == null) {
ptr = nBuild(builderPtr, readonlyBuffer, filePath, mLocaleList, mWeight, italic, ptr = nBuild(builderPtr, readonlyBuffer, filePath, mLocaleList, mWeight, italic,
mTtcIndex); mTtcIndex);
long fontBufferPtr = nGetFontBufferAddress(ptr); font = new Font(ptr);
synchronized (SOURCE_ID_LOCK) {
long id = FONT_SOURCE_ID_MAP.get(fontBufferPtr, -1);
if (id == -1) {
id = FONT_SOURCE_ID_MAP.size();
FONT_SOURCE_ID_MAP.put(fontBufferPtr, id);
}
fontIdentifier = (int) id;
}
} else { } else {
ptr = nClone(mFont.getNativePtr(), builderPtr, mWeight, italic, mTtcIndex); ptr = nClone(mFont.getNativePtr(), builderPtr, mWeight, italic, mTtcIndex);
fontIdentifier = mFont.mSourceIdentifier; font = new Font(ptr);
} }
final Font font = new Font(ptr, readonlyBuffer, mFile,
new FontStyle(mWeight, slant), mTtcIndex, mAxes, mLocaleList, fontIdentifier);
sFontRegistry.registerNativeAllocation(font, ptr);
return font; return font;
} }
@@ -525,33 +505,32 @@ public final class Font {
} }
private final long mNativePtr; // address of the shared ptr of minikin::Font private final long mNativePtr; // address of the shared ptr of minikin::Font
private final @NonNull ByteBuffer mBuffer; private final Object mLock = new Object();
private final @Nullable File mFile;
private final FontStyle mFontStyle; @GuardedBy("mLock")
private final @IntRange(from = 0) int mTtcIndex; private @NonNull ByteBuffer mBuffer = null;
private final @Nullable FontVariationAxis[] mAxes; @GuardedBy("mLock")
private final @NonNull String mLocaleList; private boolean mIsFileInitialized = false;
private final int mSourceIdentifier; // An identifier of font source data. @GuardedBy("mLock")
private @Nullable File mFile = null;
@GuardedBy("mLock")
private FontStyle mFontStyle = null;
@GuardedBy("mLock")
private @Nullable FontVariationAxis[] mAxes = null;
@GuardedBy("mLock")
private @NonNull LocaleList mLocaleList = null;
@GuardedBy("mLock")
private int mSourceIdentifier = -1;
/** /**
* Use Builder instead * Use Builder instead
*
* Caller must increment underlying minikin::Font ref count.
*
* @hide
*/ */
private Font(long nativePtr, @NonNull ByteBuffer buffer, @Nullable File file, public Font(long nativePtr) {
@NonNull FontStyle fontStyle, @IntRange(from = 0) int ttcIndex,
@Nullable FontVariationAxis[] axes, @NonNull String localeList,
int sourceIdentifier) {
mBuffer = buffer;
mFile = file;
mFontStyle = fontStyle;
mNativePtr = nativePtr; mNativePtr = nativePtr;
mTtcIndex = ttcIndex;
mAxes = axes;
mLocaleList = localeList;
mSourceIdentifier = sourceIdentifier;
synchronized (MAP_LOCK) {
FONT_PTR_MAP.append(nGetNativeFontPtr(mNativePtr), new WeakReference<>(this));
}
} }
/** /**
@@ -563,8 +542,23 @@ public final class Font {
* @return a font buffer * @return a font buffer
*/ */
public @NonNull ByteBuffer getBuffer() { public @NonNull ByteBuffer getBuffer() {
synchronized (mLock) {
if (mBuffer == null) {
// Create new instance of native FontWrapper, i.e. incrementing ref count of
// minikin Font instance for keeping buffer fo ByteBuffer reference which may live
// longer than this object.
long ref = nCloneFont(mNativePtr);
ByteBuffer fromNative = nNewByteBuffer(mNativePtr);
// Bind ByteBuffer's lifecycle with underlying font object.
BUFFER_REGISTRY.registerNativeAllocation(fromNative, ref);
// JNI NewDirectBuffer creates writable ByteBuffer even if it is mmaped readonly.
mBuffer = fromNative.asReadOnlyBuffer();
}
return mBuffer; return mBuffer;
} }
}
/** /**
* Returns a file path of this font. * Returns a file path of this font.
@@ -574,8 +568,17 @@ public final class Font {
* @return a file path of the font * @return a file path of the font
*/ */
public @Nullable File getFile() { public @Nullable File getFile() {
synchronized (mLock) {
if (!mIsFileInitialized) {
String path = nGetFontPath(mNativePtr);
if (!TextUtils.isEmpty(path)) {
mFile = new File(path);
}
mIsFileInitialized = true;
}
return mFile; return mFile;
} }
}
/** /**
* Get a style associated with this font. * Get a style associated with this font.
@@ -585,8 +588,17 @@ public final class Font {
* @return a font style * @return a font style
*/ */
public @NonNull FontStyle getStyle() { public @NonNull FontStyle getStyle() {
synchronized (mLock) {
if (mFontStyle == null) {
int packedStyle = nGetPackedStyle(mNativePtr);
mFontStyle = new FontStyle(
FontFileUtil.unpackWeight(packedStyle),
FontFileUtil.unpackItalic(packedStyle)
? FontStyle.FONT_SLANT_ITALIC : FontStyle.FONT_SLANT_UPRIGHT);
}
return mFontStyle; return mFontStyle;
} }
}
/** /**
* Get a TTC index value associated with this font. * Get a TTC index value associated with this font.
@@ -597,7 +609,7 @@ public final class Font {
* @return a TTC index value * @return a TTC index value
*/ */
public @IntRange(from = 0) int getTtcIndex() { public @IntRange(from = 0) int getTtcIndex() {
return mTtcIndex; return nGetIndex(mNativePtr);
} }
/** /**
@@ -608,7 +620,23 @@ public final class Font {
* @return font variation settings * @return font variation settings
*/ */
public @Nullable FontVariationAxis[] getAxes() { public @Nullable FontVariationAxis[] getAxes() {
return mAxes == null ? null : mAxes.clone(); synchronized (mLock) {
if (mAxes == null) {
int axisCount = nGetAxisCount(mNativePtr);
mAxes = new FontVariationAxis[axisCount];
char[] charBuffer = new char[4];
for (int i = 0; i < axisCount; ++i) {
long packedAxis = nGetAxisInfo(mNativePtr, i);
float value = Float.intBitsToFloat((int) (packedAxis & 0x0000_0000_FFFF_FFFFL));
charBuffer[0] = (char) ((packedAxis & 0xFF00_0000_0000_0000L) >>> 56);
charBuffer[1] = (char) ((packedAxis & 0x00FF_0000_0000_0000L) >>> 48);
charBuffer[2] = (char) ((packedAxis & 0x0000_FF00_0000_0000L) >>> 40);
charBuffer[3] = (char) ((packedAxis & 0x0000_00FF_0000_0000L) >>> 32);
mAxes[i] = new FontVariationAxis(new String(charBuffer), value);
}
}
}
return mAxes;
} }
/** /**
@@ -618,7 +646,17 @@ public final class Font {
* @return a locale list * @return a locale list
*/ */
public @NonNull LocaleList getLocaleList() { public @NonNull LocaleList getLocaleList() {
return LocaleList.forLanguageTags(mLocaleList); synchronized (mLock) {
if (mLocaleList == null) {
String langTags = nGetLocaleList(mNativePtr);
if (TextUtils.isEmpty(langTags)) {
mLocaleList = LocaleList.getEmptyLocaleList();
} else {
mLocaleList = LocaleList.forLanguageTags(langTags);
}
}
return mLocaleList;
}
} }
/** /**
@@ -713,8 +751,21 @@ public final class Font {
* @return an unique identifier for the font source data. * @return an unique identifier for the font source data.
*/ */
public int getSourceIdentifier() { public int getSourceIdentifier() {
synchronized (mLock) {
if (mSourceIdentifier == -1) {
long bufferAddress = nGetBufferAddress(mNativePtr);
synchronized (SOURCE_ID_LOCK) {
long id = FONT_SOURCE_ID_MAP.get(bufferAddress, -1);
if (id == -1) {
id = FONT_SOURCE_ID_MAP.size();
FONT_SOURCE_ID_MAP.append(bufferAddress, id);
}
mSourceIdentifier = (int) id;
}
}
return mSourceIdentifier; return mSourceIdentifier;
} }
}
/** /**
* Returns true if the given font is created from the same source data from this font. * Returns true if the given font is created from the same source data from this font.
@@ -736,13 +787,16 @@ public final class Font {
private boolean isSameSource(@NonNull Font other) { private boolean isSameSource(@NonNull Font other) {
Objects.requireNonNull(other); Objects.requireNonNull(other);
ByteBuffer myBuffer = getBuffer();
ByteBuffer otherBuffer = other.getBuffer();
// Shortcut for the same instance. // Shortcut for the same instance.
if (mBuffer == other.mBuffer) { if (myBuffer == otherBuffer) {
return true; return true;
} }
// Shortcut for different font buffer check by comparing size. // Shortcut for different font buffer check by comparing size.
if (mBuffer.capacity() != other.mBuffer.capacity()) { if (myBuffer.capacity() != otherBuffer.capacity()) {
return false; return false;
} }
@@ -750,15 +804,15 @@ public final class Font {
// underlying native font object holds buffer address, check if this buffer points exactly // underlying native font object holds buffer address, check if this buffer points exactly
// the same address as a shortcut of equality. For being compatible with of API30 or before, // the same address as a shortcut of equality. For being compatible with of API30 or before,
// check buffer position even if the buffer points the same address. // check buffer position even if the buffer points the same address.
if (mSourceIdentifier == other.mSourceIdentifier if (getSourceIdentifier() == other.getSourceIdentifier()
&& mBuffer.position() == other.mBuffer.position()) { && myBuffer.position() == otherBuffer.position()) {
return true; return true;
} }
// Unfortunately, need to compare bytes one-by-one since the buffer may be different font // Unfortunately, need to compare bytes one-by-one since the buffer may be different font
// file but has the same file size, or two font has same content but they are allocated // file but has the same file size, or two font has same content but they are allocated
// differently. For being compatible with API30 ore before, compare with ByteBuffer#equals. // differently. For being compatible with API30 ore before, compare with ByteBuffer#equals.
return mBuffer.equals(other.mBuffer); return myBuffer.equals(otherBuffer);
} }
@Override @Override
@@ -769,10 +823,20 @@ public final class Font {
if (!(o instanceof Font)) { if (!(o instanceof Font)) {
return false; return false;
} }
Font f = (Font) o; Font f = (Font) o;
boolean paramEqual = mFontStyle.equals(f.mFontStyle) && f.mTtcIndex == mTtcIndex
&& Arrays.equals(f.mAxes, mAxes) && Objects.equals(f.mLocaleList, mLocaleList) // The underlying minikin::Font object is the source of the truth of font information. Thus,
&& Objects.equals(mFile, f.mFile); // Pointer equality is the object equality.
if (nGetMinikinFontPtr(mNativePtr) == nGetMinikinFontPtr(f.mNativePtr)) {
return true;
}
boolean paramEqual = f.getStyle().equals(getStyle())
&& f.getTtcIndex() == getTtcIndex()
&& Arrays.equals(f.getAxes(), getAxes())
&& Objects.equals(f.getLocaleList(), getLocaleList())
&& Objects.equals(getFile(), f.getFile());
if (!paramEqual) { if (!paramEqual) {
return false; return false;
@@ -784,64 +848,42 @@ public final class Font {
@Override @Override
public int hashCode() { public int hashCode() {
return Objects.hash( return Objects.hash(
mFontStyle, getStyle(),
mTtcIndex, getTtcIndex(),
Arrays.hashCode(mAxes), Arrays.hashCode(getAxes()),
// Use Buffer size instead of ByteBuffer#hashCode since ByteBuffer#hashCode traverse // Use Buffer size instead of ByteBuffer#hashCode since ByteBuffer#hashCode traverse
// data which is not performant e.g. for HashMap. The hash collision are less likely // data which is not performant e.g. for HashMap. The hash collision are less likely
// happens because it is unlikely happens the different font files has exactly the // happens because it is unlikely happens the different font files has exactly the
// same size. // same size.
mLocaleList); getLocaleList());
} }
@Override @Override
public String toString() { public String toString() {
return "Font {" return "Font {"
+ "path=" + mFile + "path=" + getFile()
+ ", style=" + mFontStyle + ", style=" + getStyle()
+ ", ttcIndex=" + mTtcIndex + ", ttcIndex=" + getTtcIndex()
+ ", axes=" + FontVariationAxis.toFontVariationSettings(mAxes) + ", axes=" + FontVariationAxis.toFontVariationSettings(getAxes())
+ ", localeList=" + mLocaleList + ", localeList=" + getLocaleList()
+ ", buffer=" + mBuffer + ", buffer=" + getBuffer()
+ "}"; + "}";
} }
/** @CriticalNative
* Lookup Font object from native pointer or create new one if not found. private static native long nGetMinikinFontPtr(long font);
* @hide
*/
public static Font findOrCreateFontFromNativePtr(long ptr) {
// First, lookup from known mapps.
synchronized (MAP_LOCK) {
WeakReference<Font> fontRef = FONT_PTR_MAP.get(ptr);
if (fontRef != null) {
Font font = fontRef.get();
if (font != null) {
return font;
}
}
// If not found, create Font object from native object for Java API users. @CriticalNative
ByteBuffer buffer = NativeFontBufferHelper.refByteBuffer(ptr); private static native long nCloneFont(long font);
NativeFont.Font font = NativeFont.readNativeFont(ptr);
Font.Builder builder = new Font.Builder(buffer, font.getFile(), "") @FastNative
.setWeight(font.getStyle().getWeight()) private static native ByteBuffer nNewByteBuffer(long font);
.setSlant(font.getStyle().getSlant())
.setTtcIndex(font.getIndex())
.setFontVariationSettings(font.getAxes());
Font newFont = null; @CriticalNative
try { private static native long nGetBufferAddress(long font);
newFont = builder.build();
FONT_PTR_MAP.append(ptr, new WeakReference<>(newFont)); @CriticalNative
} catch (IOException e) { private static native long nGetReleaseNativeFont();
// This must not happen since the buffer was already created once.
Log.e("Font", "Failed to create font object from existing buffer.", e);
}
return newFont;
}
}
@FastNative @FastNative
private static native float nGetGlyphBounds(long font, int glyphId, long paint, RectF rect); private static native float nGetGlyphBounds(long font, int glyphId, long paint, RectF rect);
@@ -849,9 +891,21 @@ public final class Font {
@FastNative @FastNative
private static native float nGetFontMetrics(long font, long paint, Paint.FontMetrics metrics); private static native float nGetFontMetrics(long font, long paint, Paint.FontMetrics metrics);
@CriticalNative @FastNative
private static native long nGetNativeFontPtr(long ptr); private static native String nGetFontPath(long fontPtr);
@FastNative
private static native String nGetLocaleList(long familyPtr);
@CriticalNative @CriticalNative
private static native long nGetFontBufferAddress(long font); private static native int nGetPackedStyle(long fontPtr);
@CriticalNative
private static native int nGetIndex(long fontPtr);
@CriticalNative
private static native int nGetAxisCount(long fontPtr);
@CriticalNative
private static native long nGetAxisInfo(long fontPtr, int i);
} }

15
graphics/java/android/graphics/fonts/FontFamily.java
View File

@@ -143,12 +143,10 @@ public final class FontFamily {
private static native long nGetReleaseNativeFamily(); private static native long nGetReleaseNativeFamily();
} }
private final ArrayList<Font> mFonts;
private final long mNativePtr; private final long mNativePtr;
// Use Builder instead. // Use Builder instead.
private FontFamily(@NonNull ArrayList<Font> fonts, long ptr) { private FontFamily(@NonNull ArrayList<Font> fonts, long ptr) {
mFonts = fonts;
mNativePtr = ptr; mNativePtr = ptr;
} }
@@ -176,7 +174,10 @@ public final class FontFamily {
* @return a registered font * @return a registered font
*/ */
public @NonNull Font getFont(@IntRange(from = 0) int index) { public @NonNull Font getFont(@IntRange(from = 0) int index) {
return mFonts.get(index); if (index < 0 || getSize() <= index) {
throw new IndexOutOfBoundsException();
}
return new Font(nGetFont(mNativePtr, index));
} }
/** /**
@@ -185,7 +186,7 @@ public final class FontFamily {
* @return the number of fonts registered in this family. * @return the number of fonts registered in this family.
*/ */
public @IntRange(from = 1) int getSize() { public @IntRange(from = 1) int getSize() {
return mFonts.size(); return nGetFontSize(mNativePtr);
} }
/** @hide */ /** @hide */
@@ -193,6 +194,12 @@ public final class FontFamily {
return mNativePtr; return mNativePtr;
} }
@CriticalNative
private static native int nGetFontSize(long family);
@CriticalNative
private static native long nGetFont(long family, int i);
@FastNative @FastNative
private static native String nGetLangTags(long family); private static native String nGetLangTags(long family);

205
graphics/java/android/graphics/fonts/NativeFont.java
View File

@@ -1,205 +0,0 @@
/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.graphics.fonts;
import android.graphics.Typeface;
import dalvik.annotation.optimization.CriticalNative;
import dalvik.annotation.optimization.FastNative;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
/**
* Read native font objects.
*
* @hide
*/
public class NativeFont {
/**
* Represents native font object.
*/
public static final class Font {
private final File mFile;
private final int mIndex;
private final FontVariationAxis[] mAxes;
private final FontStyle mStyle;
public Font(File file, int index, FontVariationAxis[] axes, FontStyle style) {
mFile = file;
mIndex = index;
mAxes = axes;
mStyle = style;
}
public File getFile() {
return mFile;
}
public FontVariationAxis[] getAxes() {
return mAxes;
}
public FontStyle getStyle() {
return mStyle;
}
public int getIndex() {
return mIndex;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Font font = (Font) o;
return mIndex == font.mIndex && mFile.equals(font.mFile)
&& Arrays.equals(mAxes, font.mAxes) && mStyle.equals(font.mStyle);
}
@Override
public int hashCode() {
int result = Objects.hash(mFile, mIndex, mStyle);
result = 31 * result + Arrays.hashCode(mAxes);
return result;
}
}
/**
* Represents native font family object.
*/
public static final class Family {
private final List<Font> mFonts;
private final String mLocale;
public Family(List<Font> fonts, String locale) {
mFonts = fonts;
mLocale = locale;
}
public List<Font> getFonts() {
return mFonts;
}
public String getLocale() {
return mLocale;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Family family = (Family) o;
return mFonts.equals(family.mFonts) && mLocale.equals(family.mLocale);
}
@Override
public int hashCode() {
return Objects.hash(mFonts, mLocale);
}
}
/**
* Get underlying font families from Typeface
*
* @param typeface a typeface
* @return list of family
*/
public static List<Family> readTypeface(Typeface typeface) {
int familyCount = nGetFamilyCount(typeface.native_instance);
List<Family> result = new ArrayList<>(familyCount);
for (int i = 0; i < familyCount; ++i) {
result.add(readNativeFamily(nGetFamily(typeface.native_instance, i)));
}
return result;
}
/**
* Read family object from native pointer
*
* @param familyPtr a font family pointer
* @return a family
*/
public static Family readNativeFamily(long familyPtr) {
int fontCount = nGetFontCount(familyPtr);
List<Font> result = new ArrayList<>(fontCount);
for (int i = 0; i < fontCount; ++i) {
result.add(readNativeFont(nGetFont(familyPtr, i)));
}
String localeList = nGetLocaleList(familyPtr);
return new Family(result, localeList);
}
/**
* Read font object from native pointer.
*
* @param ptr a font pointer
* @return a font
*/
public static Font readNativeFont(long ptr) {
long packed = nGetFontInfo(ptr);
int weight = (int) (packed & 0x0000_0000_0000_FFFFL);
boolean italic = (packed & 0x0000_0000_0001_0000L) != 0;
int ttcIndex = (int) ((packed & 0x0000_FFFF_0000_0000L) >> 32);
int axisCount = (int) ((packed & 0xFFFF_0000_0000_0000L) >> 48);
FontVariationAxis[] axes = new FontVariationAxis[axisCount];
char[] charBuffer = new char[4];
for (int i = 0; i < axisCount; ++i) {
long packedAxis = nGetAxisInfo(ptr, i);
float value = Float.intBitsToFloat((int) (packedAxis & 0x0000_0000_FFFF_FFFFL));
charBuffer[0] = (char) ((packedAxis & 0xFF00_0000_0000_0000L) >> 56);
charBuffer[1] = (char) ((packedAxis & 0x00FF_0000_0000_0000L) >> 48);
charBuffer[2] = (char) ((packedAxis & 0x0000_FF00_0000_0000L) >> 40);
charBuffer[3] = (char) ((packedAxis & 0x0000_00FF_0000_0000L) >> 32);
axes[i] = new FontVariationAxis(new String(charBuffer), value);
}
String path = nGetFontPath(ptr);
File file = (path == null) ? null : new File(path);
FontStyle style = new FontStyle(weight,
italic ? FontStyle.FONT_SLANT_ITALIC : FontStyle.FONT_SLANT_UPRIGHT);
return new Font(file, ttcIndex, axes, style);
}
@CriticalNative
private static native int nGetFamilyCount(long ptr);
@CriticalNative
private static native long nGetFamily(long ptr, int index);
@FastNative
private static native String nGetLocaleList(long familyPtr);
@CriticalNative
private static native long nGetFont(long familyPtr, int fontIndex);
@CriticalNative
private static native int nGetFontCount(long familyPtr);
@CriticalNative
private static native long nGetFontInfo(long fontPtr);
@CriticalNative
private static native long nGetAxisInfo(long fontPtr, int i);
@FastNative
private static native String nGetFontPath(long fontPtr);
}

62
graphics/java/android/graphics/fonts/NativeFontBufferHelper.java
View File

@@ -1,62 +0,0 @@
/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.graphics.fonts;
import android.annotation.NonNull;
import dalvik.annotation.optimization.CriticalNative;
import dalvik.annotation.optimization.FastNative;
import libcore.util.NativeAllocationRegistry;
import java.nio.ByteBuffer;
/**
* This is a helper class for showing native allocated buffer in Java API.
*
* @hide
*/
public class NativeFontBufferHelper {
private NativeFontBufferHelper() {}
private static final NativeAllocationRegistry REGISTRY =
NativeAllocationRegistry.createMalloced(
ByteBuffer.class.getClassLoader(), nGetReleaseFunc());
/**
* Wrap native buffer with ByteBuffer with adding reference to it.
*/
public static @NonNull ByteBuffer refByteBuffer(long fontPtr) {
long refPtr = nRefFontBuffer(fontPtr);
ByteBuffer buffer = nWrapByteBuffer(refPtr);
// Releasing native object so that decreasing shared pointer ref count when the byte buffer
// is GCed.
REGISTRY.registerNativeAllocation(buffer, refPtr);
return buffer;
}
@CriticalNative
private static native long nRefFontBuffer(long fontPtr);
@FastNative
private static native ByteBuffer nWrapByteBuffer(long refPtr);
@CriticalNative
private static native long nGetReleaseFunc();
}

6
graphics/java/android/graphics/text/PositionedGlyphs.java
View File

@@ -184,7 +184,7 @@ public final class PositionedGlyphs {
long ptr = nGetFont(layoutPtr, i); long ptr = nGetFont(layoutPtr, i);
if (prevPtr != ptr) { if (prevPtr != ptr) {
prevPtr = ptr; prevPtr = ptr;
prevFont = Font.findOrCreateFontFromNativePtr(ptr); prevFont = new Font(ptr);
} }
mFonts.add(prevFont); mFonts.add(prevFont);
} }
@@ -224,9 +224,7 @@ public final class PositionedGlyphs {
if (getGlyphId(i) != that.getGlyphId(i)) return false; if (getGlyphId(i) != that.getGlyphId(i)) return false;
if (getGlyphX(i) != that.getGlyphX(i)) return false; if (getGlyphX(i) != that.getGlyphX(i)) return false;
if (getGlyphY(i) != that.getGlyphY(i)) return false; if (getGlyphY(i) != that.getGlyphY(i)) return false;
// Intentionally using reference equality since font equality is heavy due to buffer if (!getFont(i).equals(that.getFont(i))) return false;
// compare.
if (getFont(i) != that.getFont(i)) return false;
} }
return true; return true;

1
libs/hwui/Android.bp
View File

@@ -335,7 +335,6 @@ cc_defaults {
"jni/YuvToJpegEncoder.cpp", "jni/YuvToJpegEncoder.cpp",
"jni/fonts/Font.cpp", "jni/fonts/Font.cpp",
"jni/fonts/FontFamily.cpp", "jni/fonts/FontFamily.cpp",
"jni/fonts/NativeFont.cpp",
"jni/text/LineBreaker.cpp", "jni/text/LineBreaker.cpp",
"jni/text/MeasuredText.cpp", "jni/text/MeasuredText.cpp",
"jni/text/TextShaper.cpp", "jni/text/TextShaper.cpp",

2
libs/hwui/apex/jni_runtime.cpp
View File

@@ -69,7 +69,6 @@ extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env
extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
extern int register_android_graphics_fonts_Font(JNIEnv* env); extern int register_android_graphics_fonts_Font(JNIEnv* env);
extern int register_android_graphics_fonts_FontFamily(JNIEnv* env); extern int register_android_graphics_fonts_FontFamily(JNIEnv* env);
extern int register_android_graphics_fonts_NativeFont(JNIEnv* env);
extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
@@ -136,7 +135,6 @@ static const RegJNIRec gRegJNI[] = {
REG_JNI(register_android_graphics_drawable_VectorDrawable), REG_JNI(register_android_graphics_drawable_VectorDrawable),
REG_JNI(register_android_graphics_fonts_Font), REG_JNI(register_android_graphics_fonts_Font),
REG_JNI(register_android_graphics_fonts_FontFamily), REG_JNI(register_android_graphics_fonts_FontFamily),
REG_JNI(register_android_graphics_fonts_NativeFont),
REG_JNI(register_android_graphics_pdf_PdfDocument), REG_JNI(register_android_graphics_pdf_PdfDocument),
REG_JNI(register_android_graphics_pdf_PdfEditor), REG_JNI(register_android_graphics_pdf_PdfEditor),
REG_JNI(register_android_graphics_pdf_PdfRenderer), REG_JNI(register_android_graphics_pdf_PdfRenderer),

141
libs/hwui/jni/fonts/Font.cpp
View File

@@ -34,6 +34,7 @@
#include <hwui/Typeface.h> #include <hwui/Typeface.h>
#include <minikin/FontFamily.h> #include <minikin/FontFamily.h>
#include <minikin/FontFileParser.h> #include <minikin/FontFileParser.h>
#include <minikin/LocaleList.h>
#include <ui/FatVector.h> #include <ui/FatVector.h>
#include <memory> #include <memory>
@@ -149,12 +150,8 @@ static jlong Font_Builder_clone(JNIEnv* env, jobject clazz, jlong fontPtr, jlong
return reinterpret_cast<jlong>(new FontWrapper(std::move(newFont))); return reinterpret_cast<jlong>(new FontWrapper(std::move(newFont)));
} }
// Critical Native
static jlong Font_Builder_getReleaseNativeFont(CRITICAL_JNI_PARAMS) {
return reinterpret_cast<jlong>(releaseFont);
}
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// Font JNI functions
// Fast Native // Fast Native
static jfloat Font_getGlyphBounds(JNIEnv* env, jobject, jlong fontHandle, jint glyphId, static jfloat Font_getGlyphBounds(JNIEnv* env, jobject, jlong fontHandle, jint glyphId,
@@ -195,51 +192,92 @@ static jfloat Font_getFontMetrics(JNIEnv* env, jobject, jlong fontHandle, jlong
} }
// Critical Native // Critical Native
static jlong Font_getNativeFontPtr(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) { static jlong Font_getMinikinFontPtr(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontHandle); FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
return reinterpret_cast<jlong>(font->font.get()); return reinterpret_cast<jlong>(font->font->typeface().get());
} }
// Critical Native // Critical Native
static jlong Font_GetBufferAddress(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) { static jlong Font_cloneFont(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontHandle); FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
const void* bufferPtr = font->font->typeface()->GetFontData(); std::shared_ptr<minikin::Font> ref = font->font;
return reinterpret_cast<jlong>(bufferPtr); return reinterpret_cast<jlong>(new FontWrapper(std::move(ref)));
}
///////////////////////////////////////////////////////////////////////////////
struct FontBufferWrapper {
FontBufferWrapper(const std::shared_ptr<minikin::MinikinFont>& font) : minikinFont(font) {}
// MinikinFont holds a shared pointer of SkTypeface which has reference to font data.
std::shared_ptr<minikin::MinikinFont> minikinFont;
};
static void unrefBuffer(jlong nativePtr) {
FontBufferWrapper* wrapper = reinterpret_cast<FontBufferWrapper*>(nativePtr);
delete wrapper;
}
// Critical Native
static jlong FontBufferHelper_refFontBuffer(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) {
const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
return reinterpret_cast<jlong>(new FontBufferWrapper(font->typeface()));
} }
// Fast Native // Fast Native
static jobject FontBufferHelper_wrapByteBuffer(JNIEnv* env, jobject, jlong nativePtr) { static jobject Font_newByteBuffer(JNIEnv* env, jobject, jlong fontPtr) {
FontBufferWrapper* wrapper = reinterpret_cast<FontBufferWrapper*>(nativePtr); FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
return env->NewDirectByteBuffer( const std::shared_ptr<minikin::MinikinFont>& minikinFont = font->font->typeface();
const_cast<void*>(wrapper->minikinFont->GetFontData()), return env->NewDirectByteBuffer(const_cast<void*>(minikinFont->GetFontData()),
wrapper->minikinFont->GetFontSize()); minikinFont->GetFontSize());
} }
// Critical Native // Critical Native
static jlong FontBufferHelper_getReleaseFunc(CRITICAL_JNI_PARAMS) { static jlong Font_getBufferAddress(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
return reinterpret_cast<jlong>(unrefBuffer); FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
return reinterpret_cast<jlong>(font->font->typeface()->GetFontData());
} }
/////////////////////////////////////////////////////////////////////////////// // Critical Native
static jlong Font_getReleaseNativeFontFunc() {
return reinterpret_cast<jlong>(releaseFont);
}
// Fast Native
static jstring Font_getFontPath(JNIEnv* env, jobject, jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
const std::shared_ptr<minikin::MinikinFont>& minikinFont = font->font->typeface();
const std::string& path = minikinFont->GetFontPath();
if (path.empty()) {
return nullptr;
}
return env->NewStringUTF(path.c_str());
}
// Fast Native
static jstring Font_getLocaleList(JNIEnv* env, jobject, jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
uint32_t localeListId = font->font->getLocaleListId();
if (localeListId == 0) {
return nullptr;
}
std::string langTags = minikin::getLocaleString(localeListId);
if (langTags.empty()) {
return nullptr;
}
return env->NewStringUTF(langTags.c_str());
}
// Critical Native
static jint Font_getPackedStyle(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
uint32_t weight = font->font->style().weight();
uint32_t isItalic = font->font->style().slant() == minikin::FontStyle::Slant::ITALIC ? 1 : 0;
return (isItalic << 16) | weight;
}
// Critical Native
static jint Font_getIndex(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
const std::shared_ptr<minikin::MinikinFont>& minikinFont = font->font->typeface();
return minikinFont->GetFontIndex();
}
// Critical Native
static jint Font_getAxisCount(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
const std::shared_ptr<minikin::MinikinFont>& minikinFont = font->font->typeface();
return minikinFont->GetAxes().size();
}
// Critical Native
static jlong Font_getAxisInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontPtr, jint index) {
FontWrapper* font = reinterpret_cast<FontWrapper*>(fontPtr);
const std::shared_ptr<minikin::MinikinFont>& minikinFont = font->font->typeface();
minikin::FontVariation var = minikinFont->GetAxes().at(index);
uint32_t floatBinary = *reinterpret_cast<const uint32_t*>(&var.value);
return (static_cast<uint64_t>(var.axisTag) << 32) | static_cast<uint64_t>(floatBinary);
}
// Fast Native // Fast Native
static jlong FontFileUtil_getFontRevision(JNIEnv* env, jobject, jobject buffer, jint index) { static jlong FontFileUtil_getFontRevision(JNIEnv* env, jobject, jobject buffer, jint index) {
@@ -314,20 +352,23 @@ static const JNINativeMethod gFontBuilderMethods[] = {
{"nBuild", "(JLjava/nio/ByteBuffer;Ljava/lang/String;Ljava/lang/String;IZI)J", {"nBuild", "(JLjava/nio/ByteBuffer;Ljava/lang/String;Ljava/lang/String;IZI)J",
(void*)Font_Builder_build}, (void*)Font_Builder_build},
{"nClone", "(JJIZI)J", (void*)Font_Builder_clone}, {"nClone", "(JJIZI)J", (void*)Font_Builder_clone},
{"nGetReleaseNativeFont", "()J", (void*)Font_Builder_getReleaseNativeFont},
}; };
static const JNINativeMethod gFontMethods[] = { static const JNINativeMethod gFontMethods[] = {
{"nGetMinikinFontPtr", "(J)J", (void*)Font_getMinikinFontPtr},
{"nCloneFont", "(J)J", (void*)Font_cloneFont},
{"nNewByteBuffer", "(J)Ljava/nio/ByteBuffer;", (void*)Font_newByteBuffer},
{"nGetBufferAddress", "(J)J", (void*)Font_getBufferAddress},
{"nGetReleaseNativeFont", "()J", (void*)Font_getReleaseNativeFontFunc},
{"nGetGlyphBounds", "(JIJLandroid/graphics/RectF;)F", (void*)Font_getGlyphBounds}, {"nGetGlyphBounds", "(JIJLandroid/graphics/RectF;)F", (void*)Font_getGlyphBounds},
{ "nGetFontMetrics", "(JJLandroid/graphics/Paint$FontMetrics;)F", (void*) Font_getFontMetrics }, {"nGetFontMetrics", "(JJLandroid/graphics/Paint$FontMetrics;)F",
{ "nGetNativeFontPtr", "(J)J", (void*) Font_getNativeFontPtr }, (void*)Font_getFontMetrics},
{ "nGetFontBufferAddress", "(J)J", (void*) Font_GetBufferAddress }, {"nGetFontPath", "(J)Ljava/lang/String;", (void*)Font_getFontPath},
}; {"nGetLocaleList", "(J)Ljava/lang/String;", (void*)Font_getLocaleList},
{"nGetPackedStyle", "(J)I", (void*)Font_getPackedStyle},
static const JNINativeMethod gFontBufferHelperMethods[] = { {"nGetIndex", "(J)I", (void*)Font_getIndex},
{ "nRefFontBuffer", "(J)J", (void*) FontBufferHelper_refFontBuffer }, {"nGetAxisCount", "(J)I", (void*)Font_getAxisCount},
{ "nWrapByteBuffer", "(J)Ljava/nio/ByteBuffer;", (void*) FontBufferHelper_wrapByteBuffer }, {"nGetAxisInfo", "(JI)J", (void*)Font_getAxisInfo},
{ "nGetReleaseFunc", "()J", (void*) FontBufferHelper_getReleaseFunc },
}; };
static const JNINativeMethod gFontFileUtilMethods[] = { static const JNINativeMethod gFontFileUtilMethods[] = {
@@ -343,8 +384,6 @@ int register_android_graphics_fonts_Font(JNIEnv* env) {
NELEM(gFontBuilderMethods)) + NELEM(gFontBuilderMethods)) +
RegisterMethodsOrDie(env, "android/graphics/fonts/Font", gFontMethods, RegisterMethodsOrDie(env, "android/graphics/fonts/Font", gFontMethods,
NELEM(gFontMethods)) + NELEM(gFontMethods)) +
RegisterMethodsOrDie(env, "android/graphics/fonts/NativeFontBufferHelper",
gFontBufferHelperMethods, NELEM(gFontBufferHelperMethods)) +
RegisterMethodsOrDie(env, "android/graphics/fonts/FontFileUtil", gFontFileUtilMethods, RegisterMethodsOrDie(env, "android/graphics/fonts/FontFileUtil", gFontFileUtilMethods,
NELEM(gFontFileUtilMethods)); NELEM(gFontFileUtilMethods));
} }

16
libs/hwui/jni/fonts/FontFamily.cpp
View File

@@ -100,17 +100,31 @@ static jint FontFamily_getVariant(CRITICAL_JNI_PARAMS_COMMA jlong familyPtr) {
return static_cast<jint>(family->family->variant()); return static_cast<jint>(family->family->variant());
} }
// CriticalNative
static jint FontFamily_getFontSize(jlong familyPtr) {
FontFamilyWrapper* family = reinterpret_cast<FontFamilyWrapper*>(familyPtr);
return family->family->getNumFonts();
}
// CriticalNative
static jlong FontFamily_getFont(jlong familyPtr, jint index) {
FontFamilyWrapper* family = reinterpret_cast<FontFamilyWrapper*>(familyPtr);
std::shared_ptr<minikin::Font> font = family->family->getFontRef(index);
return reinterpret_cast<jlong>(new FontWrapper(std::move(font)));
}
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
static const JNINativeMethod gFontFamilyBuilderMethods[] = { static const JNINativeMethod gFontFamilyBuilderMethods[] = {
{ "nInitBuilder", "()J", (void*) FontFamily_Builder_initBuilder }, { "nInitBuilder", "()J", (void*) FontFamily_Builder_initBuilder },
{ "nAddFont", "(JJ)V", (void*) FontFamily_Builder_addFont }, { "nAddFont", "(JJ)V", (void*) FontFamily_Builder_addFont },
{ "nBuild", "(JLjava/lang/String;IZ)J", (void*) FontFamily_Builder_build }, { "nBuild", "(JLjava/lang/String;IZ)J", (void*) FontFamily_Builder_build },
{ "nGetReleaseNativeFamily", "()J", (void*) FontFamily_Builder_GetReleaseFunc }, { "nGetReleaseNativeFamily", "()J", (void*) FontFamily_Builder_GetReleaseFunc },
}; };
static const JNINativeMethod gFontFamilyMethods[] = { static const JNINativeMethod gFontFamilyMethods[] = {
{"nGetFontSize", "(J)I", (void*)FontFamily_getFontSize},
{"nGetFont", "(JI)J", (void*)FontFamily_getFont},
{"nGetLangTags", "(J)Ljava/lang/String;", (void*)FontFamily_getLangTags}, {"nGetLangTags", "(J)Ljava/lang/String;", (void*)FontFamily_getLangTags},
{"nGetVariant", "(J)I", (void*)FontFamily_getVariant}, {"nGetVariant", "(J)I", (void*)FontFamily_getVariant},
}; };

125
libs/hwui/jni/fonts/NativeFont.cpp
View File

@@ -1,125 +0,0 @@
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#undef LOG_TAG
#define LOG_TAG "Minikin"
#include "Font.h"
#include "SkData.h"
#include "SkFont.h"
#include "SkFontMetrics.h"
#include "SkFontMgr.h"
#include "SkRefCnt.h"
#include "SkTypeface.h"
#include "GraphicsJNI.h"
#include <nativehelper/ScopedUtfChars.h>
#include "Utils.h"
#include "FontUtils.h"
#include <hwui/MinikinSkia.h>
#include <hwui/Paint.h>
#include <hwui/Typeface.h>
#include <minikin/FontFamily.h>
#include <minikin/LocaleList.h>
#include <ui/FatVector.h>
#include <memory>
namespace android {
// Critical Native
static jint NativeFont_getFamilyCount(CRITICAL_JNI_PARAMS_COMMA jlong typefaceHandle) {
Typeface* tf = reinterpret_cast<Typeface*>(typefaceHandle);
return tf->fFontCollection->getFamilies().size();
}
// Critical Native
static jlong NativeFont_getFamily(CRITICAL_JNI_PARAMS_COMMA jlong typefaceHandle, jint index) {
Typeface* tf = reinterpret_cast<Typeface*>(typefaceHandle);
return reinterpret_cast<jlong>(tf->fFontCollection->getFamilies()[index].get());
}
// Fast Native
static jstring NativeFont_getLocaleList(JNIEnv* env, jobject, jlong familyHandle) {
minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
uint32_t localeListId = family->localeListId();
return env->NewStringUTF(minikin::getLocaleString(localeListId).c_str());
}
// Critical Native
static jint NativeFont_getFontCount(CRITICAL_JNI_PARAMS_COMMA jlong familyHandle) {
minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
return family->getNumFonts();
}
// Critical Native
static jlong NativeFont_getFont(CRITICAL_JNI_PARAMS_COMMA jlong familyHandle, jint index) {
minikin::FontFamily* family = reinterpret_cast<minikin::FontFamily*>(familyHandle);
return reinterpret_cast<jlong>(family->getFont(index));
}
// Critical Native
static jlong NativeFont_getFontInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle) {
const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
uint64_t result = font->style().weight();
result |= font->style().slant() == minikin::FontStyle::Slant::ITALIC ? 0x10000 : 0x00000;
result |= ((static_cast<uint64_t>(minikinSkia->GetFontIndex())) << 32);
result |= ((static_cast<uint64_t>(minikinSkia->GetAxes().size())) << 48);
return result;
}
// Critical Native
static jlong NativeFont_getAxisInfo(CRITICAL_JNI_PARAMS_COMMA jlong fontHandle, jint index) {
const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
const minikin::FontVariation& var = minikinSkia->GetAxes().at(index);
uint32_t floatBinary = *reinterpret_cast<const uint32_t*>(&var.value);
return (static_cast<uint64_t>(var.axisTag) << 32) | static_cast<uint64_t>(floatBinary);
}
// FastNative
static jstring NativeFont_getFontPath(JNIEnv* env, jobject, jlong fontHandle) {
const minikin::Font* font = reinterpret_cast<minikin::Font*>(fontHandle);
MinikinFontSkia* minikinSkia = static_cast<MinikinFontSkia*>(font->typeface().get());
const std::string& filePath = minikinSkia->getFilePath();
if (filePath.empty()) {
return nullptr;
}
return env->NewStringUTF(filePath.c_str());
}
///////////////////////////////////////////////////////////////////////////////
static const JNINativeMethod gNativeFontMethods[] = {
{ "nGetFamilyCount", "(J)I", (void*) NativeFont_getFamilyCount },
{ "nGetFamily", "(JI)J", (void*) NativeFont_getFamily },
{ "nGetLocaleList", "(J)Ljava/lang/String;", (void*) NativeFont_getLocaleList },
{ "nGetFontCount", "(J)I", (void*) NativeFont_getFontCount },
{ "nGetFont", "(JI)J", (void*) NativeFont_getFont },
{ "nGetFontInfo", "(J)J", (void*) NativeFont_getFontInfo },
{ "nGetAxisInfo", "(JI)J", (void*) NativeFont_getAxisInfo },
{ "nGetFontPath", "(J)Ljava/lang/String;", (void*) NativeFont_getFontPath },
};
int register_android_graphics_fonts_NativeFont(JNIEnv* env) {
return RegisterMethodsOrDie(env, "android/graphics/fonts/NativeFont", gNativeFontMethods,
NELEM(gNativeFontMethods));
}
} // namespace android

10
libs/hwui/jni/text/TextShaper.cpp
View File

@@ -23,13 +23,14 @@
#include <set> #include <set>
#include <algorithm> #include <algorithm>
#include "SkPaint.h"
#include "SkTypeface.h"
#include <hwui/MinikinSkia.h> #include <hwui/MinikinSkia.h>
#include <hwui/MinikinUtils.h> #include <hwui/MinikinUtils.h>
#include <hwui/Paint.h> #include <hwui/Paint.h>
#include <minikin/MinikinPaint.h>
#include <minikin/MinikinFont.h> #include <minikin/MinikinFont.h>
#include <minikin/MinikinPaint.h>
#include "FontUtils.h"
#include "SkPaint.h"
#include "SkTypeface.h"
namespace android { namespace android {
@@ -149,7 +150,8 @@ static jfloat TextShaper_Result_getY(CRITICAL_JNI_PARAMS_COMMA jlong ptr, jint i
// CriticalNative // CriticalNative
static jlong TextShaper_Result_getFont(CRITICAL_JNI_PARAMS_COMMA jlong ptr, jint i) { static jlong TextShaper_Result_getFont(CRITICAL_JNI_PARAMS_COMMA jlong ptr, jint i) {
const LayoutWrapper* layout = reinterpret_cast<LayoutWrapper*>(ptr); const LayoutWrapper* layout = reinterpret_cast<LayoutWrapper*>(ptr);
return reinterpret_cast<jlong>(layout->layout.getFont(i)); std::shared_ptr<minikin::Font> fontRef = layout->layout.getFontRef(i);
return reinterpret_cast<jlong>(new FontWrapper(std::move(fontRef)));
} }
// CriticalNative // CriticalNative